package queryTree;

import java.util.ArrayList;

import optimization.Condition;

/**
 * @author Van
 */


public interface TreeNode extends Cloneable {
	/**
	 * get list of tables in a tree
	 * @param tableList - traverse a tree, return the output
	 */
	public void getTableList(ArrayList<String> tableList);	
	
	public Object clone() throws CloneNotSupportedException;
	public String toString();
}
